FIELD: commercial electrical energy generation. SUBSTANCE: gas-turbine unit has gas-generator module incorporating case mounting rigidly fixed annular shell, power module with rigidly fixed flange, and fastening member for joining cases of modules together. Fastening member is installed concentrically to gas- generator module annular shell for axial displacement and is enclosed in shroud having cylindrical wall, gas conveying pipeline being connected to its inner space. Gas conveying pipeline communicates with gas-generator compressor space or is brought to exhaust fan. Gas-turbine unit incorporates provision for eliminating gas leakage through fastening joint thereby ensuring desired operating conditions within its location.. EFFECT: enhanced output power of electric generator. 4 cl, 2 dwg
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